A parent sent their child to school after a positive Covid-19 test. More than 80 students may have been exposed, officials say

More than 80 students were potentially exposed to Covid-19 on the first day of class in Reno, Nevada, on Monday after a parent sent their child to Marce Herz Middle School, despite both the parent and child receiving a positive Covid-19 test just two days earlier, Washoe County Health District officials said.